Paper-making machine



R. H. GRANT PAPER MAKING MACHINE June 9, 1925.

Filed Feb. 2, 924 2 Sheets-Sheet i June 9, 1925.

R. H. GRANT PAPER MAKING MACHINE Filed Feb. 2, 1924 2 SheetsSheet 2 Patented June 9, 1 925.

UNITEDS'QTATES PATENT OFF C -e RUFUS n. GRANT, or WESTBROQK, MAINE, assrsnon T axon, Ban'ron & rALnS, 1N5 7 oonronarnn, or woncnsrna, MASSACHUSETTS, A conronarron or MAssAoHU- PAPER-MAKING ivr'aci-riivnf Application filed February 2, 1924. SeriaiN 230 v To all whom it may concern." V I Be it knownthat 1, Burns H. GRAN'r, a citizen of the United States, and a res1-' dent of Westbrook, Maine, have invented.

new and useful Improvements in'Paper- Making Machines, which invention is fully set forth in the following specification.

This inventionrelates to improvements in Fourdrinier paper making. machines and 1c more particularly to the Supporting and vibrating of the shake-frame 'or shaking section. T

Heretofore it has been common practice to suppcrt the shakeframe by upright spring iii bars located at opposite sides-of the machine;

Each such support consists either f a single fiat steel spring, or a plurallty of such springs or laminations of equal width 1 and length, attached at one end to .the 21 3 shake-frame and" at the other end rigidly secured to a suitable support and admitting of the necessary shaking orvibrationof the shake-frame by means of the usnal power driven means including a pitman or connecting rod joined at one end to said shakefram'e. In conjunction with such supporting of the shake-frame there have also been provided adjustable oppositely acting coiled springs mounted underneath the forexample in Savory Patent 675,072, May 28 1901, and Mellinger et al Patent"1,118,366, Nov. 24,- 1914. One function of such coiled springs is to. cushion or absorbthe shock relatively light or small diametered, connecting rod. In other words, it has been the purpose 'to vibrate the 'shake-fra ne'in' one direction by the pull oftheconnecting rod and in the other direction by the action of the coiled springs, and to thereby. avoid load, strain and wear upon the driving connections and bearings thereof which days. p

Some. of the main objects sought and at- Ward end o-fthe shake-frame, as shown'for of stopping the large inertiashake-frame aforesaid power driving connections in both directions of vibration of the shake-frame and to thereby also admit of the use of a Would;be occasioned by requiring thereof both a pulling of the shake-frame in one direction and then apushing of the samein the opposite direction. While plausible in] 1 have not Worked out Well-in practice. and

theory these coiled spring arrangements hence have been unsatisfactory. E xperience has demonstrated that the coiled springs .continually get out. of adjustment and that when thus not tuned up? they are, if anything, more detrimental than helpful. Furthermore, being inaccessibly 'located 'under a Wet part of the'machine,

such springs can only be reached forread justment by interfering withandshutting down the running of the machine normally intended to run continually except on Sunt-ainedby the present invention. are to over come the aforesaid difficulties andgenerally to simplify and improve uponsaid. prior mechanism both as to construction and 0perationyto minimize the driving power required to vibrate the shake-frame and also the wear upon parts and bearings; to provide an arrangement in which the springs are at all times readily accessible and easily adjustable while the machine is running and without interruption to the operation there-j of; to combine oneset of springs the functions. of both the .fiat steel supporting springs and the coiled springs heretofore used, preferably employing to that end specially constructed springs of the leaf or laminated type'such, as commonly used on automobiles and other vehicles. A further. object attained in. the securing "of then springs at their fixed ends each in special supports each adjustableon a horizontal axis tothereby tension each spring as required with relation to the shake-frame. and theconnecting rod of the power driving means. Still other objects-and advantages attained by the invention willbe apparent from the further description and drawings.

What is at present believed to bethe preferred mechanical expression and .embodiaccompanying drawings,iwl1erein- .Fig. 1 is a side. elevation showing particle I 'larly the shaking section of the Fourdrinier part. of a paper making machine;

Fig. 2 is an end elevation looking toward the right from the left end of.Fig. 1;

. ent of the invention is illustrated in the Fig. 3 is a View siinilar to, Fig 2, but on a larger scale and with parts in section;

Fig. 4 is a fragmentary side elevation of one end oi the shaking section shown in gslitofi; a .1 i Fig. 5 is a top view of the parts shown inFig.4; 1

Fig. 6 is a sectional view on line 66 of Fig. 7; and 1 L ig a.fragmentaryviewin elevation illustrating particularly the suljportir'fg .or the table rolls and their bearings from the shake rail's. I Z As shown inthedrawings, the shakingsection or shake-frame o f'the machine cornprisesgin the main a U-s aped frame 10 ez'itending across the machine and "connect:- iiig the forward ends oftwoilongitudinal sidefraiis'll and l2,'tablerolls 30 carried by said side rails which are also calledfshake rails, and a 'breast ro'uao (shown in dotted l'inesFi'g's'. 1 and 2) over which runs the Fourdrini'erorfmaking wire (also shown in dotted lines Fig, 1); The frame 10 isof elongated Ushaped formation andincludes upright legs 13 and 1 1 at its opposite ends. To stiflen-the side rails and also the shaking section as'an entirety, struts and other bracing means are provided; Thus a strutbar 15- extends lnng'itudinally of each rail with an interposed brace 16 at one endand an interposed rectangular frame or casting 17 at the other end. Each shake 'ra'il at its inner end (in the direction of the travelof th'e -niaking wire indicated by dotted lines in' Figl) piv'otally supported on suitable part of the framework; Thus a ver tic'al pivot 18 connects the rail to a block 19 which in turn is horizontally pivoted atQO to the upper end of'a frame standard '21. Each side railcan vibrate or shake laterally on its pivot 18, and can turn on the horizontal-pivot20 when raised or lowered at its forward end :in adjusting theinclination of the-entii e shake fram'e; r v

At its forward end each rail vllfand 12 is rotatably supported ona 's wivel pl'ate '22 supported upon the upper endof the corresponding leg 13 or 14 of the U-sha'ped frame 10. A spindle 23 extending vertically'through eachleg 13 and l kp'as sesat its upper end through abushi-ng 24 soeketed in the-upper end or the arnnthen through the swivel plate 22 and the-shake rail 11 or 12 andv onthe topsideof the'latter is engaged by a.nut.25i.whichis covered by acap 26. Af'head or sleeve 27st the lower forward ed 'e of-eachcasting 17 projectsirito a recess 28 at the lower end of the corresponding leg 13 or 1 1 'otthe U-shapedfra ne 10and is there. traversedzby and rotatable on/the spindlel28. As thus appears; saidUshape'd frame 10 and the side rails 11} and 12 and associatedparts may be vibrated or shaken laterally at the forward ends of said rails each bracket 31th boltjfi working in a slot oi'eacih bracket servihg to rigidly secure th'e tba'r in the position to which it is ad i' sted. l, V Y, 1 r y reast i'oll e lO is journalled atopposite ends inbearin'gs 4:1 and 1 2 adju stably secured respectiyejly to front faces of the legs 'lfand 14 oifth'e U-shaped frame 10. Each bearing is secured in place by two which 'pais s through vertical elongated slots 4-1 in the corresponding leg 13hr 141 and may be raised or ,lowered an adj usting screw threaded throiigh a bracket 46 on the leg o i the frame 10, the eader such adjusting screw contacting an over-hanging ledge on the bearing and the bolt having a lock "nut 48 for lockiiig it in ad'j usted position. 49 (F 1) "there isshown 'indotted outline a flow-box, which may be of any suitable construction.

.50 is-a block niovable vertically along 'a flat surface ofeach leg 13 and 14; or" the U-sha'ped frame 10 and constituting a seat for the ripper end of one "of the upright springs which are to support the forward endof-the shaking section of, the machine. Said block 50 is penetrated by a bolt '51 the headed inner end of which is slidable in fan undercut slot in the surface along which the block 5O 'is adjustable. A clamp plate-with nuts screw threaded onto the outer end of bolt 51 serve to rigidly clamp the iip'p'er end of the siipporting spring and the block 50 to the frame 10 in the desired position of adjustment. 1 To change that position thenut s'are loosened andan adj i1s ting-sc'rew 52, bearing on the top surface of the 'block 50, is turned either to elevate the shaking sectionor to permitthe same to lower by its own weight, thus changing the elevation pra forward end otthe shaking section and correspondingly varying its inclination. v I

'f fi Fig. 2, represents any suitable power driven' means sometimes called the shakehead; for imparting shaking movement to the shalring section or shake-frame through a c'onne'cti igfrod or pitin an 5 6 pivotally con nected to a clamp block or collar 57 (Figs.

4 and 5) whichen'lbraces aslightly curved cylmdrical'rod 58v lIl'SUCll manner that said rod may-slide vertlcally up or .down through ward end of the shake section is changed by raising'or loweringthe connectlon to the said block 57 when the elevation or the for-' supporting springs by means of the adjust-' ing screws 52, 52 and associated parts as hereinbefore described. At this upper end rod 58 is rigidly secured in a projecting lug 59 on the legle ofvthe Ushaped frame 10, and at its lower end seated and rigidly secured in a socket at the outer end of a curved arm 60 also located on said leg 14 of the frame 10.

The parts hereinbefore mentioned in the detailed description (with thejeziception of the springs) may beof any well known and suitable construction such as illustrated. The present invention concerns more particularly the springs for supporting the forward end of the shaking section or shakeframe and other parts of which the following is a detailed description.

and 'ZOar'e the upright springs for supporting the forward end of the shaking seei tion or shake-frame of the machine in a manner permitting lateral vibration or shaking thereof. Each of said springs is of the leaf or laminated type somewhat of the character of such springs as used on automobiles and other vehicles.- The spring 65- is at the side of the machine at which the connecting rod 56 imparts vibration to the shaking section, in other words at what is known as the driving side of the machine, while the spring is positioned at the opposite or what is known as the tending side. As shown, said spring 65 is made up of a succession of laminations or leaves of uniform width but gradually increasing length beginning with the shortest leaf at the outer side of the spring, there being four of these graduated length leaves with the fourth lying against one of three longest leaves of which all are of equal length and clamped at their upper ends to theblock 50 by the bolt 51 which passes through openings in the upper ends of said leaves.

As shown, the spring 70 is also madeup of a plurality of laminations or leaves of uniform width but varying lengths. Thus there are three centrally positioned longest leaves all of equal length and clamped at their upper ends to their corresponding block 50 by its bolt 51 whichpasses through openings in the upperends of said leaves. There are next-two shorter leaves positioned one against each of the outside longest leaves, and then two more still shorter leaves positioned one against each of the first mentioned shorter leaves respectively.

is a seat or support for the lower end of spring 65, the plurality of. leaves of the latter being rigidly clamped together at their lower ends to said support by bolt-76 passing through an upright flange of said support through the lower ends of all of said spring leaves, and through two clamp-' ing blocks 77 and 7 8 located at opposite sides respectively of the group of spring leaves The support 75' is llOl'lZOl'ltAllj pivotedbetweenu )standin lu 's or ears 79 SO ofa' base, bracket',,81, on a horizontal trunnion or bolt82 extending through said ears and support, Two adjusting screws 83, 88 with T bolt heads, pass freely downwardlyth-rough holes in an extension or plate 84 onthe sup port 75 and at their lower ends engage screw threaded sockets in a base plate 85. A third adjusting screw 86 also having a bolt head makes screw threaded engagement through said extension or plate84 and at its lower end bearsagainstthe surface of said base plate 85. As will thus be apparent, these three adjusting screws serve to "effect a rock-' ing or tilting adjustment of the support 7 5 on its pivot and to rigidly hold the sup-f port in any position to whichit is thus ad? justed. For example, to adjustably tilt or rock the support toward the right in Fig.

3, the two adjusting screws 83, 83 would be unscrewed and the adjusting screw 86- screwed up 'eachthe' proper amount to give the desired adjustment. v

a The support 7 5 and associated parts thus described with reference to spring 65 are duplicated at the other side of the machine with respect tothe spring 70.

90, Figs. 2 and 3, is a heavy beam eXtending acrossthe machine between the two base A plates 83, 83 and constituting a part of the general framework.

or adjusted to such position by means of. their readily accessible adjusting screws 83', 83 and 86as toplace the springs 65 and 70 In operation, the supports 75, 75 are set.

under tension toward the tending side of the machine (to the right in Figs. 2 and 3) and thereby constantly exert pressure upon the" shake-frame in that direction with a resultant constant pull or tensionupon' the co-nnecting rod 56 of the driving connec tions. It follows that 'while the shake frame will be vibrated in one directionby the pull of the driving means through the connecting rod 56 against the opposing ten-' sionof said sprlngsylt wlll be vibrated in' the other directionby the reacting tension of-said springs and'not by apushing force of the power driving connections exerted through the connecting rod. 7 The leaves at theleft side of each'of the springs 65 and r 70 in Figs. and?) are important in affording the necessary spr ng power for thus vibratingthe shake-frame in one direction of its movement and without which spring power-the driving connections would be're-' quired to push'the shake-frame in that direction after having pulled it in the oppo site direction, with resulting "strain and or slackening of constant tension upon the connect ng rod shall be promptly avoided 'rapidwear upon the parts requiring fre quent repairs. It s" important .that any. tendency towards looseness of connections sliake frame and at the other end to a suit able support,said spring bar or bars being tensioned to .constantly tend to move the shake-frame'to the limit of its vibration in one direction andthereby imposing tension upon said driving connections throughout tions of its vibration;

8. In a paper makmgmaclnne, the combination of a laterally vibratory shake-frame.

movement of the shake-frame in both direcdriving connections joined to said shake frame for imparting lateral movement thereto; and one or more upright spring bars connected at one end to said shake-frame and at the'other endto a suitable support,each bar being composed of a plurality of leaves of varying lengths and being tensioned to and permitting lateral vibration thereof,

said means including an upright spring sup porting bar secured at one end to said shake-. frame and at its other end to a suitable sup-.

port, said spring bar being composed of a plurality of leaves of varying lengths and being tensioned to constantlytend to move the shake-frame to the limit of itsvibration in one direction and thereby imposing tension upon said drivingconnections throughout movement of the shake-frame in both directions of its vibration. V

10; In a paper making machine, the com-- bination of a laterally vibratory shakeframe; driving connections joined to said shake-frame for imparting lateral movement thereto; means supporting said shakefr'ame and permitting lateral vibration there of, said means including an upright spring supporting bar at each side of the shakeframe secured at its upper end to said frame and "at its lower endto a suitable support,

and each of said spring bars being composed of a plurality of leaves of varying lengths and being tensioned toconstantly tend: to move the shake-frame to the limit of its vi-- bration in one direction and therebyimjoos-- ing tension upon said driving connections throughout movement of the shake-frame in both directions of itsVibratiOn. j

11. In a paper making machine, the combination of a. laterally vibratory shakeframe; drivin connections joined to said shake-frame fbr" imparting lateral move ment thereto; and a spring bar secured'at one end to said shake-frame and at its other,

end to a suitable support, said bar being coin-posed of a plurality of leaves of varying f lengthsi": v v

12. In a paper making machine, the combination of a laterallyvibratory shakeframe; drivingfconnections joined to said shake-frame for imparting lateral 'movement thereto; and'a spring bar securedatf end to a suitable support, said bar ,being composed of a plurality of leaves of varying lengths at both sides thereof. g j

'13. In a paper making machine, the combination of a laterally vibratory shakeframe; driving connections joined to said shake-frame for imparting lateral movement thereto; and an upright spring supporting bar for said shake-frame secured at i one end to said shake-frame and at itsother its upper end to said frame andat its lower end to a suitable support, said bar being composed of ing lengths. 14.- In a paper making bination of a laterally vibratory shakea plurality of leaves of varymachine, the comframe, driving connections joined to said shake-frame for imparting lateral moveing bars for said shake-frame'one at each side thereof and at their upper ends secured to said frame, each of said bars being composed of a plurality of leaves of varying lengths.

15. In a paper making machine, the comblnation 'o shakeframe for imparting lateral :move- -ment thereto; an upright spring bar; means connecting said bar at one end to said shake frame and at its other end to i a suitable support, said means including an adjustable [seat in which one end of said spring bar is secured; and means for adjusting said seat to tension said spring bar in one direction of vibration of the shake-frame.

.16. In a paper makingmachine, the combination of a laterally vibratory shakeframe;- driving connections joined to said shake-frame for imparting lateral move ment thereto; means supporting said shakeframe and permitting lateral. vibration thereof, said means including an upright spring supporting bar; meansconnecting ment thereto; and upright spring support- 1 a laterally vibratory shakeframe; driving connections joined to said a l said bar at one end to said shake-frame and at its other end to a suitable support and said means including an adjustable seat in which one end of said spring bar is secured; and means. for adjusting said seat to tension said springbar in one direction ofvibration of the shake-frame. I

17. In a paper making machine,thecombination of a laterally vibrator shakeframe; driving connections joine to said shake=frame for imparting lateral movement thereto; an upright sp ing" bar coir I nected at its upper end to said shake frame;

an adjustable seat to which said bar is se cured at. its lower end; and means for adjusting said seat to tension said spring bar in one direction of vibration ofthe shakeframa 1 8. In a paper making machine, the combination of a vibratory shake-frame; a

spring bar joined at one end to said frame 7 and at its other end secured in a seat mounted on a suitable support; and means for adjusting the position of said seat to tension said spring bar. I

l9. In a paper making machine, the combination of a vibratory shake-frame; an upright spring supporting bar for said frame joined at its upper end to. the frame; a seat maem to which the. lOWGDQIlCl of said spring baris secured and means'for adjusting the position of said seat to tension said spring bar.

20. In a paper making machine, the com bination ofva vibratory shake-frame; an upright spring bar joined at its upper end to said shake-frame; a seat adjustable on a pivot and to which seat said spring bar is secured at its lower end; and means for adjusting said seat onits pivot to thereby 1.6

tension said spring bar.

In test mony whereof I have signed this specification.

RUFUS H. GRANT. 

